The Pittsburgh Steelers are down another quarterback. Byron Leftwich is being treated for broken ribs from Sunday's 13-10 home loss to the Baltimore Ravens, according to NFL.com.

Leftwich replaced starter Ben Roethlisberger against the Ravens. He will be replaced by 37-year-old third-stringer Charlie Batch for the time being. Batch will get his fourth start in the past four seasons in the Week 12 game against the Cleveland Browns.

With their depth dwindling at the position, the Steelers are expected to try out quarterbacks this week.

Batch, a Pittsburgh native and 15-year veteran, last served as first string in Week 16 of 2011. He didn't need to do much (15-for-22, 298 yards, interception) as the defense and running game did most of the work in a 27-0 shutout of the St. Louis Rams.

The Browns have only two wins, but present a tougher assignment for Batch on the road. Cleveland led Baltimore late in Week 9, and then pushed Dallas to overtime on Sunday. Look for the Steelers to lean heavily on their rushing attack and their pass defense with Batch again to avoid an upset against a division rival.